Results 21 to 30 of about 314 (120)

Video pulse rate variability analysis in stationary and motion conditions [PDF]

open access: yes, 2018
Background: In the last few years, some studies have measured heart rate (HR) or heart rate variability (HRV) parameters using a video camera. This technique focuses on the measurement of the small changes in skin colour caused by blood perfusion.
Melchor Rodríguez, Angel   +1 more
core   +3 more sources

Non-Contact Bed-Based Monitoring of Vital Signs [PDF]

open access: yes, 2019
Vital signs are a set of commonly measured signals used internationally as a baseline in medicine and surgery and are one of the most accurate predictors of clinical and physiological deterioration.
Bennett, Stephanie Louise
core   +2 more sources

Eulerian Video Magnification for Cleaning and Inspection of Air Conditioning Ducts With Rover Robot [PDF]

open access: yes, 2020
This paper presents a diversied artifice of a Rover robot prototype in order to inspect abnormalities in air conditioning ducts and ventilation through an integrated rotating high-resolution camera system Eulerian Video Magnification is a  method ...
Alves, Alessandro Ferreira   +5 more
core   +2 more sources

Invisible Color Variations of Facial Erythema: A Novel Early Marker for Diabetic Complications?

open access: yesJournal of Diabetes Research, Volume 2019, Issue 1, 2019., 2019
Aim. (1) To quantify the invisible variations of facial erythema that occur as the blood flows in and out of the face of diabetic patients, during the blood pulse wave using an innovative image processing method, on videos recorded with a conventional digital camera and (2) to determine whether this “unveiled” facial red coloration and its periodic ...
Victoria Blanes-Vidal   +5 more
wiley   +1 more source

Detecting Deepfake Videos Using Euler Video Magnification [PDF]

open access: yes, 2021
Recent advances in artificial intelligence make it progressively hard to distinguish between genuine and counterfeit media, especially images and videos.
Das, Rashmiranjan   +2 more
core   +1 more source

Heart Rate Detection Using Microsoft Kinect: Validation and Comparison to Wearable Devices

open access: yesSensors, 2017
Contactless detection is one of the new frontiers of technological innovation in the field of healthcare, enabling unobtrusive measurements of biomedical parameters. Compared to conventional methods for Heart Rate (HR) detection that employ expensive and/
Ennio Gambi   +9 more
doaj   +1 more source

Monitoring Infants by Automatic Video Processing

open access: yesELCVIA Electronic Letters on Computer Vision and Image Analysis, 2016
This work has, as its objective, the development of non-invasive and low-cost systems for monitoring and automatic diagnosing specific neonatal diseases by means of the analysis of suitable video signals.
Luca Cattani
doaj   +1 more source

Signal Enhancement Applied to Pulse Transit Time Measurement [PDF]

open access: yes, 2016
High arterial blood pressure, or hypertension, is a major risk factor for cardiovascular diseases. Conventional noninvasive methods for estimating the arterial blood pressure rely on a brachial cuff that is placed around the upper arm.
He, Xiaochuan
core   +2 more sources

Distinguishing Posed and Spontaneous Smiles by Facial Dynamics

open access: yes, 2017
Smile is one of the key elements in identifying emotions and present state of mind of an individual. In this work, we propose a cluster of approaches to classify posed and spontaneous smiles using deep convolutional neural network (CNN) face features ...
B Mandal   +24 more
core   +1 more source

MC-EVM: A Movement-Compensated EVM Algorithm with Face Detection for Remote Pulse Monitoring

open access: yesApplied Sciences
Automated tasks, mainly in the biomedical field, help to develop new technics to provide faster solutions for monitoring patients’ health status. For instance, they help to measure different types of human bio-signal, perform fast data analysis, and ...
Abdallah Benhamida, Miklos Kozlovszky
doaj   +1 more source

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